Question: T If sin A= - - and tan B = i Find the exact value of CoS ( 2 /A - 2 B)

T If sin A= - - and tan B = i
Find the exact value of CoS ( 2 /A - 2 B)

T If sin A= - - and tan B = i Find the exact value of CoS ( 2 /A - 2 B)

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